and thrust force.

$($b$)$ A hollow steel bar of length $500mm,OD=200mm,$ and $ID=100mm$ is machined to length $475$ mm $,$

$OD=180mm$ and $ID=160mm$ using Lathe machine. All the required operations are performed at $200$

RPM$,$ feed $0\mathrm{.}5m\frac{m}{r}ev$ and maximum depth of cut $2$ mm $.$ Write the possible process plans and calculate the

average MRR for production of $500$ pieces of the machined component for any one plan neglecting any kind

of approach and over travel.Please give handwritten solution